and hundreds of people are expected, singing performances from people like james taylor, kelly clarkson and beyonce, followed by the parade. and it doesn't wrap up on monday. there is a prayer service on tuesday morning. a lot of folks wondering about the weather. quite cold this morning. but the forecast for monday is a low of 25, so it might be very, very chilly early on in that day, and a high of 40, which is around about the average for presidential inauguration days. in recent years. >> work on the weather for us, apt athena, make it warmer for monday morning. >>> on twitter, i don't know if you noticed i'm a fashionista, and i follow a lot of people in the fashion world. a moment, it went nuts, because michelle obama changed her hair. >> reporter: that's right. we know the first lady gets a lot of attention for her wardrobe. we don't know what she's going to wear on inauguration day sunday or monday, but we know from the twitter account that the first lady's office launched yesterday she has a new haircut. she has bang es now. i wonder if this will start a trend. we'll have to see